Pith Number

pith:PESWJ2DO

pith:2012:PESWJ2DO7BBKFP3YGJCB2ZVGQL

not attested not anchored not stored refs pending

Signal Recovery in Unions of Subspaces with Applications to Compressive Imaging

Benjamin Recht, Nikhil Rao, Robert Nowak

arxiv:1209.3079 v1 · 2012-09-14 · stat.ML · math.OC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PESWJ2DO7BBKFP3YGJCB2ZVGQL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:45:32.850849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

792564e86ef842a2bf7832441d66a682d65f0475755c4ab27afbcbfababdc839

Aliases

arxiv: 1209.3079 · arxiv_version: 1209.3079v1 · doi: 10.48550/arxiv.1209.3079 · pith_short_12: PESWJ2DO7BBK · pith_short_16: PESWJ2DO7BBKFP3Y · pith_short_8: PESWJ2DO

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PESWJ2DO7BBKFP3YGJCB2ZVGQL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 792564e86ef842a2bf7832441d66a682d65f0475755c4ab27afbcbfababdc839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5eca72fb69d01e2196e073a410bf24104fd378da44bcd49dcbbb408569edfc6",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-09-14T02:39:26Z",
    "title_canon_sha256": "6c3f5a5eb04ac83fdedeca1d3365f5271f9d60ffd2a2a95a1ce31623e69e8223"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3079",
    "kind": "arxiv",
    "version": 1
  }
}